Rivet-holding device



(No Model.)

J. P. WEIDEMEYER.

, RIVET HOLDING DEVICE.

Patented Apr. 30, 1889.

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n. Pnzn Photoumogmphnr, wnmngm a c UNITED STATES PATENT OFFICE.

JOHN P. IVEIDEMEYER, OF ASHLAND, KENTI CKY.

RlVET-HOLDING DEVICE.

SPECIFICATION forming part of Letters Patent N 0. 402,288, dated April 30, 1889.

Application filed September 14, 1888- Serial No. 285,372. (No model.)

To all whom it may concern: I

Be it known that 1, JOHN P. WEIDEMEYER, of Ashland, in the county of Boyd and State of Kentucky, have invented a new and Improved Rivet-Holding Tool for Boilers, of which the following is a full, clear, and exact description.

This invention has for its object to provide a rivet-holding tool for boilers; and it consists in a tool for such a purpose constructed and arranged as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in whichsimilar lettersof reference indicate corresponding parts in all the figures.

Figure 1 is a vertical section of aboiler, showing the tool in position for use. Fig. 2 is a perspective view of the tool, and Fig. 3 is a vertical section.

Hitherto in repairing boilers the patching has had to be done from the outside of the boiler, on account of the inaccessibility to the heads of the rivets on the inside of the boiler by reason of the fines. Patching done in this way has been imperfect and insecure, owing to the nature of the fastenings. To properly fasten the rivets on the inside it was necessary to remove some of the fines, which was troublesome and expensive.

The object of this invention is to obviate these objections.

The riveting tool is constructed with a curved strip, 1, in the form of a segment of a circle, to adapt it to extend over the interior circular surface of a boiler, and of a size to permit its passage through the man-hole of a boiler. The curved strip 1 is provided with handles 2, detachably secured thereto by any suitable means, and, as here shown, by means of bolts 3, extending through the overlapping shouldered ends i of the handles 2 and strip 1,and secured by nuts 5, or otherwise. The curved strip 1 is provided with a plate or die, 6, having a recess, 7, to fit over the head of a rivet, which plate is detachably secured to. and adjustable on the strip 1 in any suitable manner, and, as here shown, by means of screws 8' passing through threaded holes in a series of threaded holes 9 in the strip 1 and having their heads countersunk in die 6. In this way the plate 6 may be located in a suitable position on the strip 1 to bear against a rivet-head. In using the tool the plate 6 is adjusted to the proper position on the strip 1, according to the location of the rivet to be secured, before the tool is introduced into aboiler. The handles 2 being removed, the strip 1 is passed in through the man-hole of a boiler, 11, and moved under the fines 12, to bring the plate 6 in engagement with a rivet-head, 13, by means of its recess 7 fitting over the same. The handles 2 are then secured to strip 1, and the latter held by a man in the boiler while the rivet is being secured. Where a rivet in the bottom of the boiler is out of sight, the plate 6 may be quickly guided to the rivet before the rivet has a chance to chill by means of arod, 14, having a hooked end, 15, engaging an eye, 16, on the side of plate 6.

By means of this tool the head of a rivet on the inside of a boiler may be readily taken hold of and firmly held while the rivet is being secured.

In some cases the tool will be found advantageous when made Without detachable handles and with a permanently-fixed die or anvil, as, for example, where only a small patch is to be put on. The tool can then be slipped around inside of the boiler a short distance without necessitating the removal of the die. WVhere there was a space between the top row of flues and the shell of the boiler sufficient for a man to pass his arm the tool could be used without detachable handles.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. A rivet-holding tool for boilers, consisting of a curved strip in the form of a segment of a circle, to extend over a portion of the in teriorsurface of a boiler,' and a holding-plate on the curved strip to hold the head of a rivet while being secured, substantially as shown and described.

2. A rivet-holding tool for boilers, consisting of a curved strip adapted to extend over a portion of the interior surface of a boiler and having detachable handles, and a rivet-headholding plate adjustable lengthwise on the curved strip, substantially as shown and de scribed.

In a rivet-holding, tool for boilers, the curved strip 1, of a size adapted to pass through the man-hole of a boiler and to extend over a portion of the interior surface of a boiler, and having a series of holes, 9, the handles 2, secured by nuts 5 and bolts 3, passing through the shouldered overlapping ends 4 of strip 1 and handles 2, and the plate 6, with rivet-head recess '7, secured to strip 1 by nuts 10 and bolts 8, passing through holes 9, substantially as shown and described.

4. A rivet-holding tool for boilers, consisting of a curved strip of a size to extend over a portion of the interior surface of a boiler,

and having detachable handles, a rivet-head- 15 JOHN P. WEIDEMEYER.

Witnesses:

L. JAMES, JUL. SPIeKER. 

